Cubic Meters Calculator
Type into either field, the other updates instantly. There is no "from" or "to": both directions work the same calculator.
Type a number into either field and the other updates instantly, there's no "from" and "to" here, just two units of the same volume kept in sync. Use it to read a metric appliance spec in familiar cubic feet, or to turn a US measurement into the cubic meters an international shipping document expects.
The Conversion Factor
Cubic feet to cubic meters
Cubic Meters = Cubic Feet ÷ 35.315
Reversed: Cubic Feet = Cubic Meters × 35.315
The number comes from the length conversion, cubed: one meter is about 3.281 feet, and 3.281 × 3.281 × 3.281 works out to 35.3147, rounded to 35.315 for everyday use. Because a meter is longer than a foot, a cubic meter is a noticeably bigger unit than a cubic foot, it takes more than 35 of the smaller unit to fill one of the larger one, which surprises people expecting a factor closer to 3 (the linear ratio) rather than 35 (the cubed one).
CBM: The Shipping Industry's Name for This Unit
On a freight quote, packing list or customs form, you'll see cubic meters written as CBM rather than m³, it's the same unit, just the abbreviation the logistics industry standardized on. Ocean and air freight carriers compare a shipment's CBM figure against its weight and bill against whichever number works out larger for them, a practice covered in more depth on the shipping volume calculator. If you're quoting a pallet or crate for international transport, converting your measurement to CBM before you call the freight forwarder saves a round of back-and-forth.
Metric appliance and equipment specifications are the other place this conversion turns up constantly. A refrigerator or water tank imported from a metric-system country will list its capacity in liters or cubic meters, and converting that to cubic feet is the fastest way to compare it against a US-market model's spec sheet without re-deriving the arithmetic every time, the same logic the liquid capacity calculator applies to liquid capacity instead of solid volume.
Why the Metric System Never Needed a Separate "Cubic Yard"
The imperial system layers several independent units on top of each other, inches, feet, yards, each with its own conversion factor to the next, which is exactly why this site needs a cubic inches page, a cubic yards page and this cubic meters page as three separate tools. The metric system instead scales a single unit by powers of ten: millimeters, centimeters, meters and kilometers are all the same underlying unit shifted by a decimal place, so there's no equivalent to the foot-yard split that needs its own dedicated conversion page. A cubic centimeter, a cubic meter and, for very large volumes, a cubic kilometer are the same unit at different scales, related by clean powers of a thousand rather than an odd factor like 27 or 1,728.
That's also why metric spec sheets rarely bother distinguishing "cubic meters" from some intermediate unit the way English-language sheets distinguish cubic feet from cubic yards, there simply isn't a commonly-used intermediate size between the liter (a thousandth of a cubic meter) and the cubic meter itself for most everyday volumes.
Cubic Feet to Cubic Meters Reference Table
The 35.315 row is worth memorizing on its own, it's the point where the two units cross almost exactly at 1:1.
| Cubic Feet (ft³) | Cubic Meters (m³) |
|---|---|
| 1 ft³ | 0.0283 m³ |
| 10 ft³ | 0.2832 m³ |
| 27 ft³ | 0.7646 m³ |
| 35.315 ft³ | 1.0000 m³ |
| 50 ft³ | 1.4158 m³ |
| 100 ft³ | 2.8317 m³ |
| 353.15 ft³ | 10.0000 m³ |
Reading the 35.315 row: that's the exact point at which cubic feet and cubic meters swap dominance, below it, the cubic-meter figure is the smaller of the two; above it, cubic feet becomes the smaller number relative to a growing metric volume. For everyday conversions well away from that crossover, the universal unit converter handles cubic meters alongside five other units at once if you need more than this page's two.
Worked Example: Importing a Metric Appliance
A European refrigerator rated at 0.35 m³
- 0.35 m³ × 35.315 = 12.36 ft³
- Compare against a US size class
At 12.36 ft³, this sits below the standard 18–26 ft³ full-size class this site's refrigerator page covers, closer to a large compact model.
Running an imported appliance's metric spec through this calculator before comparing it to US market listings avoids the common mistake of reading "0.35" as a small number and assuming the appliance itself is unusually tiny, 0.35 cubic meters is a genuinely mid-sized capacity, it just looks small because the unit counting it is large.
The same conversion works for any metric spec sheet, a washing machine's drum capacity, a chest freezer's rated volume, a water heater's tank size, all commonly published in liters or cubic meters outside the US, and all convertible through this same 35.315 factor before comparing against a US-market equivalent.
Concrete and Aggregate Ordered in Cubic Meters
Outside the US, concrete, sand, gravel and topsoil are typically priced and delivered in cubic meters rather than the cubic yards this site's concrete calculator and gravel calculator default to, a metric ready-mix order of "one cubic meter" is a genuinely different quantity from a US order of "one cubic yard," even though both sound like a similarly-sized round number. A cubic meter is about 1.31 cubic yards, so a metric order that looks like a rounder, tidier figure than its imperial equivalent still needs converting before comparing prices or planning a pour across the two systems.
This distinction matters most for anyone working across both systems on the same project, an engineer using metric structural drawings but ordering from a US supplier who quotes in yards, for instance. Converting every figure to one system before placing an order, rather than trusting a mental approximation of "close enough," avoids a pour that's short or long by more material than the margin of error should allow.
A Quick Sanity Check
Because 35.315 is a large multiplier, it's easy to be off by a factor of ten without noticing if a decimal point slips somewhere. A fast sanity check: cubic meters should always be the smaller number of the pair for any volume you'd actually encounter in a house, yard or shipment, if your calculated cubic-meter figure comes out larger than the cubic-feet figure you started with, a digit has been misplaced somewhere and it's worth re-entering the original measurement.
Frequently Asked Questions
What exactly does CBM mean on a freight quote?
CBM stands for cubic meter, and it's the unit international freight forwarders and shipping lines use to price and allocate space, a shipment's CBM figure is compared against its weight to decide which one the carrier actually bills against. Knowing your shipment's CBM in advance lets you compare quotes from different carriers on the same basis.
Why is 35.315 the number everyone uses for this conversion?
It's how many cubic feet fit inside one cubic meter, a meter is about 3.281 feet long, and 3.281 cubed comes to 35.3147, usually rounded to 35.315 for everyday use. Some published tables round it further to just 35.3, close enough for a rough estimate but capable of drifting at large volumes.
Is a cubic meter bigger or smaller than a cubic yard?
Bigger, a cubic meter is about 1.31 cubic yards, since a meter (3.28 ft) is longer than a yard (3 ft) and that difference compounds across all three dimensions. That 31% gap matters when comparing a metric ready-mix quote directly against a US supplier's cubic-yard price.
Do I need to convert to cubic meters for a US-based delivery?
Usually not, US suppliers for concrete, soil and gravel quote in cubic yards, not cubic meters. Cubic meters mainly matter for imported goods, international shipping paperwork, or specs written by a manufacturer outside the US. Checking a supplier's invoice for which unit it actually uses avoids ordering the wrong quantity.